Gaya APA
English Language Service, Inc. (1977).
900 english 900 .
Philippines:
macmillan Publishing Company.
Gaya Chicago
English Language Service, Inc.
900 english 900.
Philippines:
macmillan Publishing Company,
1977.
Text.
Gaya MLA
English Language Service, Inc.
900 english 900.
Philippines:
macmillan Publishing Company,
1977.
Text.
Gaya Turabian
English Language Service, Inc.
900 english 900.
Philippines:
macmillan Publishing Company,
1977.
Print.